书院 (shūyuàn) refers to a traditional Chinese academy of classical learning, which historically functioned as a private or semi-private institution for Confucian scholarship, examination preparation, and intellectual discourse. The term also has a historical slang meaning of 'brothel' (from the Ming-Qing period), but this is archaic and rarely used today. In modern contexts, 书院 is often used in the names of schools, cultural centers, or residential colleges at universities, evoking a sense of scholarly tradition.